I have an otherwise dandy, cheap (did I mention cheap) stainless 1911 with all the bells and whistles that fits my hand like a glove in the safe next to my Gold Cup. It groups 2 3/4 to 3 at 25 yards, but is a whole lot easier to shoot fast. The manufacturers rep said adding a Kart barrel has made them tack drivers for him, meaning 1 1/2 inches or less. Does that sound right, and where do I get a Kart barrel? I'd really like to learn to do it myself, and I have time, but please tell me if I'd be better off hiring it done. Any advice at all will be greatly appreciated. Also, where to learn about Kart barrels and their services. Lastly, can I put a carbon steel barrel in the stainless frame without ill effects? Thanks